Home / 3,369.15-4,647.83-2,189.79

Finding the Fourth Proportional to 3,369.15, 4,647.83 and 2,189.79

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Solution

The fourth proportional to 3,369.15, 4,647.83 and 2,189.79 is: 3,020.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.15 : 4,647.83 = 2,189.79 : x
  2. Step 2: Convert to fraction form
    3,369.15/4,647.83 = 2,189.79/x
  3. Step 3: Cross multiply
    3,369.15x = 4,647.83 × 2,189.79
  4. Step 4: Simplify right side
    3,369.15x = 10,177,771.66
  5. Step 5: Solve for x
    x = 10,177,771.66/3,369.15
  6. Step 6: Final answer
    x = 3,020.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.